Temper-screw connection.



J. BERGSTEN.

TEMPER SCREW CONNECTION.

APPLICATION men APR- 30. um.

Patented Sept. 11, 191?.

2 SHEETS-SHEEI' 2.

gnoen roz JOHN BERGSTEN, 0F TAFT, CALIFORNIA.

TEMPEBr-SCREW CONNECTION.

Specification of Letters Patent.

Patented Sept. Jill, 193W.

Application filed April 30, 1917. Serial No. 165,514.

To all whom it ma'yconcem:

' Be it known that I, JOHN BnResTEN, a citizen of the United States, residing at Taft, in the county of Kern and State of California, have invented certain new and useful Improvements in Temper-Screw Connections, of which the following is a specification.

My invention relates to apparatus for drilling or borings wells, such as oil wells, or the like, and has particular reference to improvements in the temper screw connection between the oscillatory beam or operating member and the cable or connecting member, included in such apparatus.

An important object of the invention is to provide means whereby the temper screw may be vertically adjusted, during its reciprocatory movement, by a preferably manually operated rotatable or movableelement, which is attached to or carried by a relatively stationary support, in convenient reach of the operator or attendant.

A further object of the invention is to provide apparatus of the above mentioned character, having parts which may be conveniently adjusted and removed for the purpose of repair or replacement.

A further object of the invention is to pro vide apparatus of the above mentioned character, which is simple in construction, inexensive to manufacture, strong and durable.

Other objects and advantages of the invention will be apparent during the course of-th'e following description.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of apparatus embodyingmy invention,

Fig. 2 is an edge elevation, taken at a right angle tothe showing of Fig. 1, parts being omitted, and parts broken away,

Fig. 3 is an enlarged central longitudinal sectional view through the temper screw connection,

Fig. 4 is a horizontal sectional view taken on line 4.-4 of Fig. 3,

Fig. 5 is a similar view taken on line 55 of Fig. 3, I

Fig. 6 is a similar view taken on line 66 of Fig. 3,

Fig. 7 is a longitudinal sectional view through a manually operated wheel and associated elements, and,

Fig. 8 is a plan view of the same.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 designates a vertical standard or support, upon which is pivoted a swinging beam 11, receiving its movement from a pitman 12, pivoted to one end thereof, and pivoted to a crank 13, to be driven thereby. The beam 11 is provided at its opposite end with a forked member 14, having openings 15 formed in the sides thereof, for the reception of a transverse pin or pivot element 16, as shown.

My improved temper screw connecting apparatus comprises a body portion, consisting of an inverted U-shaped frame 17, extending into the forked member 14, and receiving in the upper end thereof a sleeve 18, having an opening 19, as clearly shown in Fig. 3, for the pivotal reception of the pin 16. The sleeve 18 is permanently held in place within the U-shaped frame 17 by means of a plate 20, bolted thereto, as shown at 21. This plate is apertured, as shown at 22, for the reception of the sides of the frame 17 and these sides receive clamping tubes or pipes 23, the upper ends of which engage the plate 20, as shown. The lower ends of the tubes 23 contact with main sleeves 24, arranged upon the lower ends of the frame 17, and clamped thereon by nuts 25, having screw-threaded engagement with the lower ends of the frame.

Preferably detachably secured to the main sleeves 24 are sections 25 of a screw-threaded element or nut, attached to the sleeves by screws 26 or the like. Extending through and between the nut sections 25 is a temper screw 27, the upper end of which is provided with a reduced extension 28, freely rotatably mounted within an opening in a vertically movable guide plate 29 but having no screwthreaded engagement therewith, and held therein by nuts 30. The guide plate 29, as more clearly shown in Fig. 4, is provided at its ends with U-shaped openings or recesses 31, for the slidable reception of the tubes 23. The frame 17 will have a slight or perceptible degree of yield and the sections 25 may be brought into a proper firm engagement with the temper screw by means of a strap 32, surrounding the main sleeves 24, and attached to one main sleeve, as shown at 33. The opposite end of the strap 32 projects outwardly beyond the adjacent main sleeve for a substantial distance, and has a screwthreaded opening 34 for the reception of a clamping bolt 35, the inner end of which is adapted to operate in a recess 36, formed in the adjacent sleeve 24. The bolt 35 may be turned by a handle 37.

The temper screw 27 is provided at its lower end with a cylindrical depending extension 38, rotatably mounted within an opening 39, formed in a cross head 40. The extension 38 is provided at its lower end and beneath the cross head with a sleeve or ring 41, rigidly secured thereto, and a ball bearing 42, is preferably interposed between the cross head 40 and the sleeve or ring 41, as shown.

The numeral 43 designates companion members of a chuck, provided near their upper ends with transverse openings for the reception of bolts or pivot elements 44, having pivotal connection with the lower ends of inverted U-shaped suspension elements or bolts 45, the upper transverse portions of which are pivotally mounted within recesses 46, in the cross head 40 and held therein by caps 47, which are suitably secured to the cross head. Particular attention is called to the fact that the suspension elements or bolts 45 are pivoted to swing in the plane of movement of the beam 11.

The companion members 43 are provided upon their inner sides with inclined recesses 48, having stop shoulders 49, at their upper ends. Mounted to slide within the recesses 48 are jaws 50, which are preferably movable. As more clearly shown in Fig. 5, the jaws 50 are provided upon their outer sides with longitudinal flanges or ribs 51, slidable in grooves 52, and these flanges have grooves 53, receiving the inner ends of guide pins 54 or the like, secured to the companion members 43. The inner faces of the jaws 50 are provided with semi-circular recesses 55 for the reception of a. cable, not shown. The jaws 50 are moved upwardly, when released by retractile coil springs 56, corresponding ends of which are anchored within recesses 57, the lower ends of which are attached to the jaws 50 through the medium of arms 58, secured thereto. It is thus apparent when the pull is taken ofl" of the cable the jaws 50 will be released and moved upwardly for entirely freeing the cable. Particular attention is further called to the fact that the contact area of the grooves 55 is long and great, and by virtue of the pivotal suspension of the companion members 43, there is no liability of these jaws cutting the cable.

As more clearly shown in Figs. 1, 3, and 5, clamping frames 59, surround the members 43 and are secured to one member 43, as shown at 60. Each frame comprises a swinging side 61, hinged to the transverse portion 62 thereof, as shown at 63. The spring 64 serves to move the side 61 inwardly. The side 61 and the companion side 62 have transverse openings 63, for receiving the reduced ends of a transverse member 64, having a screw-threaded opening 65 for the reception of a clamping bolt 66. This clamping bolt has an enlarged grooved head 67, held within an opening 68, by screws 69. The bolt 66 is turned by a crank 70, as shown.

Rigidly secured to the temper screw 27, preferably near and above the cross head 40, is a gear 71, for turning the same. This gear is adapted to be rotated by a gear 72, journaled through a bearing-73, carried by or formed integral with the cross head 40. The gear 72 is rigidly connected with a vertical shaft 74, journaled through the bearing 73. The shaft 74 is connected with a shaft 75 through the medium of a universal joint 76, and the loWer end of the shaft 75 is connected with a shaft 77 through themedium of a universal joint 78'. The shaft 77 is preferably vertically arranged and as more clearly shown in Figs. 7 and 8, is formed square or other than round in cross section. The shaft 77 projects into a stationary vertically arranged tube 78, which may be positioned in convenient reach of the operator or attendant. Swiveled to the upper end of the tube 78 by means of a collar 79, is a hand wheel 80,

having an opening 81, square in cross-section, for the reception of the shaft 7 7.

The operation of the apparatus is as follows:

The cable, (not shown) has its upper end clamped or held between the jaws 50, by proper manipulation of the bolts 66, and this cable may not be adjusted or let out from the jaws 43 until the drill or tool has penetrated for a substantial distance into the earth. During the vertical swinging movement of the beam 11, the temper screw connection or apparatus is reciprocated, which movement is imparted to the cable and associated elements. As the drill carried by the cable gradually descends into the ground, it is necessary to adjust or feed the cable downwardly, a slight distance, during the reciprocatory movement of the apparatus, as too much time would be lost to stop the operation of the apparatus, for these slight adjustments. To accomplish this, the operator turns the hand wheel 80, which movement is transmitted to the shaft 77, whereby the shaft 74 is rotated through the medium of the shaft 75. The rotation of the shaft 74 turns the gear wheel 72, which rotates the gear 71, thus rotating the temper screw 27 in a proper direction to lower the same, with respect to the frame 17. It is thus apparent that the temper screw may be raised by rotating the wheel 80 in the opposite direction.

It is to be understood that the form of my scribed, the combination with a vertically movable member, of a temper screw having screw-threaded engagement therewith, means to turn the'temper screw upon its longitudinal axis and connected therewith for movement with the same, a longitudi nally adjustable device connected with the means todrive it, and a member held against substantial vertical movement and connected with the device to operate the same.

2. In apparatus of the character described, the combination with a' vertically movable member, of a temper screw having screw-threaded engagement therewith and adapted to be vertically moved thereby, gearing connected with the temper screw to turn it upon its longitudinal axis and to be vertically moved thereby, a shaft connected with the gearing to drive it and extending downwardly therebelow, a rotatable member splined upon the shaft, and means for holding the rotatable'member against substantial vertical movement.

preferred example of the.

3. In apparatus of the character described, the combination with a vertically movable member, of a temper screw hav ing screw-threaded engagement therewith and adapted to be verticallymoved thereby, a device connected with the temper screw to turn it upon its longitudinal axis and to be vertically moved thereby, a shaft connected with the device to drive it and depending therefrom, a relatively stationary support, and a manually operated member swiveled upon the support and splined upon a portion of the shaft.

4. In apparatus of the character described, the combination with a vertically movable member, of a temper screw having screw-threaded engagement therewith and adapted to be vertically moved thereby, a device connected with the temper screw to turn it upon its longitudinal axis and to be vertically moved thereby, a shaft connected with the device to drive it, a manually op-- erated member splined uponthc shaft, means to hold the manually operated member against substantial vertical movement, and a suspension device pivotally connected with the lower end of the temper screw.

In testimony whereof I afiix my signature in presence of two witnesses.

' JOHN BERGSTEN. Witnesses:

E. F. GRUM, H. D. Emo'r'r, 

